Equivalent & Substitute Parts for Molex 0901471109

Part Overview

The Molex 0901471109 is a 9-position receptacle connector with 0.100" (2.54mm) pitch, designed for through-hole PCB mounting with solder termination. This connector features tin contact finish and is rated for 3A at 350V, suitable for board-to-board applications across automotive, general purpose, lighting, medical, and telecommunications sectors. The part is active and ROHS3 compliant with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when component availability changes, supply chain disruptions occur, or design flexibility is required while maintaining electrical and mechanical compatibility within specified parameters.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	9
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Contact Finish - Mating	Tin
Current Rating	3A
Voltage Rating	350V
Operating Temperature	-55°C ~ 105°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0901471109 is determined by the following critical parameters:

Connector Type & Contact Configuration: Must be receptacle with female socket contacts
Position Count & Pitch: Must maintain 9 positions at 0.100" (2.54mm) mating pitch
Mounting & Termination: Through-hole solder termination required
Electrical Ratings: Current rating of 3A minimum; voltage rating of 350V minimum
Contact Finish: Tin finish for mating surface
Operating Temperature Range: Must support -55°C to 105°C minimum
Compliance: ROHS3 compliant

The identified substitute parts meet these core parameters while maintaining functional equivalence for board-to-board connector applications.

Parameter Comparison

Parameter	Molex 0901471109	Harwin M20-7820946	Harwin M20-7820942
Manufacturer	Molex	Harwin Inc.	Harwin Inc.
Connector Type	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket
Number of Positions	9	9	9
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Contact Finish - Mating	Tin	Tin	Gold
Current Rating (Amps)	3A	3A	3A
Voltage Rating	350V	1000V	1000V
Operating Temperature	-55°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Insulation Material	Polyester, Glass Filled	Polyamide (PA6T), Nylon 6T	Polyamide (PA6T), Nylon 6T
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active

Engineering Selection Recommendations

Harwin M20-7820946 (Tin Contact Finish)

This substitute maintains identical contact finish (tin) to the Molex 0901471109. Both parts are active products with ROHS3 compliance. The M20-7820946 provides higher voltage rating (1000V vs. 350V) and equivalent current capacity (3A). The operating temperature range of -40°C to 105°C covers the upper portion of the original specification. This part is suitable for direct substitution in applications where the lower temperature limit of -40°C is acceptable.

Harwin M20-7820942 (Gold Contact Finish)

This substitute features gold mating contact finish instead of tin. Both parts are active with ROHS3 compliance and equivalent current ratings (3A). The M20-7820942 provides higher voltage rating (1000V vs. 350V) and operates within -40°C to 105°C. Selection of this part requires confirmation that gold contact finish is compatible with the mating connector and application requirements.

Frequently Asked Questions (FAQ)

Q: Can Harwin M20-7820946 directly replace Molex 0901471109?

A: Yes, for applications where the operating temperature range of -40°C to 105°C is acceptable. Both connectors share identical pitch (0.100"), position count (9), mounting type (through-hole), termination method (solder), and contact finish (tin). Current and voltage ratings of the Harwin part meet or exceed the original specification.

Q: What is the difference between M20-7820946 and M20-7820942?

A: The primary difference is contact finish. M20-7820946 has tin mating contacts, matching the Molex 0901471109. M20-7820942 has gold mating contacts. Both are electrically and mechanically equivalent in all other parameters.

Q: Does the higher voltage rating of Harwin parts affect compatibility?

A: No. Higher voltage rating indicates greater electrical capability and does not affect mechanical or electrical compatibility in applications rated at 350V or lower.

Q: Are there temperature range considerations for substitution?

A: The Molex 0901471109 operates from -55°C to 105°C. Both Harwin substitutes operate from -40°C to 105°C. Applications requiring operation below -40°C must use the original Molex part.

Q: Are all three parts ROHS3 compliant?

A: Yes. Molex 0901471109, Harwin M20-7820946, and Harwin M20-7820942 are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

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